Several players were concerned that the injury to Williams was potentially season-ending, although the defensive tackle and coach Brad Childress said more evaluation is necessary.

Williams is expected to undergo a magnetic resonance imaging test this morning.

"I'm good," Williams said. "Just a little friendly fire."

Williams combined with linebacker Chad Greenway to stop Arizona tight end Ben Patrick after a 5-yard gain with about 11 minutes left in the third quarter. It was not clear how Greenway hurt Williams, who was tended to on the field before being carted off to the locker room.

Williams did not return.

He had two tackles.

"I mean, there's a fear that he's in a sling," Childress said. "I mean, he's not going to be able to scratch his nose with that hand. I wouldn't know how to characterize it until we get back to Minneapolis.

"I just know he's a tough guy. If there's any chance he can be in there, he's going to be in there."

If Williams cannot play, he would be replaced by Fred Evans, who had a quarterback pressure Sunday.